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-rw-r--r--cifs.upcall.rst.in9
1 files changed, 9 insertions, 0 deletions
diff --git a/cifs.upcall.rst.in b/cifs.upcall.rst.in
index 08ce324..09d0503 100644
--- a/cifs.upcall.rst.in
+++ b/cifs.upcall.rst.in
@@ -91,6 +91,15 @@ OPTIONS
--version|-v
Print version number and exit.
+*********************
+ENVIRONMENT VARIABLES
+*********************
+
+GSS_USE_PROXY="yes"
+ Enable usage of gssproxy for credential retrieval. This includes keytab
+ based client initiation as well as (Resource Based) Constrained Delegation.
+ See gssproxy-mech(8).
+
************************
CONFIGURATION FOR KEYCTL
************************